@@ -2503,6 +2503,9 @@ static MemTxResult watch_mem_read(void *opaque, hwaddr addr, uint64_t *pdata,
case 4:
data = address_space_ldl(as, addr, attrs, &res);
break;
+ case 8:
+ data = address_space_ldq(as, addr, attrs, &res);
+ break;
default: abort();
}
*pdata = data;
@@ -2528,6 +2531,9 @@ static MemTxResult watch_mem_write(void *opaque, hwaddr addr,
case 4:
address_space_stl(as, addr, val, attrs, &res);
break;
+ case 8:
+ address_space_stq(as, addr, val, attrs, &res);
+ break;
default: abort();
}
return res;
@@ -2537,6 +2543,16 @@ static const MemoryRegionOps watch_mem_ops = {
.read_with_attrs = watch_mem_read,
.write_with_attrs = watch_mem_write,
.endianness = DEVICE_NATIVE_ENDIAN,
+ .valid = {
+ .min_access_size = 1,
+ .max_access_size = 8,
+ .unaligned = false,
+ },
+ .impl = {
+ .min_access_size = 1,
+ .max_access_size = 8,
+ .unaligned = false,
+ },
};
static MemTxResult flatview_write(FlatView *fv, hwaddr addr, MemTxAttrs attrs,
Aligned 8-byte memory writes by a 64-bit target on a 64-bit host should always turn into atomic 8-byte writes on the host, however a write write watchpoint would end up tearing the 8-byte write into two 4-byte writes in access_with_adjusted_size(). Reported-by: Andrew Baumann <Andrew.Baumann@microsoft.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> --- exec.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)